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// SPDX-License-Identifier: GPL-2.0
//
// Copyright (c) 2009-2011 Samsung Electronics Co., Ltd.
// http://www.samsung.com
//
// Samsung CPU Support
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/io.h>
#include <mach/map-base.h>
#include "cpu.h"
unsigned long samsung_cpu_id;
void __init s3c64xx_init_cpu(void)
{
samsung_cpu_id = readl_relaxed(S3C_VA_SYS + 0x118);
if (!samsung_cpu_id) {
/*
* S3C6400 has the ID register in a different place,
* and needs a write before it can be read.
*/
writel_relaxed(0x0, S3C_VA_SYS + 0xA1C);
samsung_cpu_id = readl_relaxed(S3C_VA_SYS + 0xA1C);
}
pr_info("Samsung CPU ID: 0x%08lx\n", samsung_cpu_id);
}
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